The concept of da e caster is to smoothly harmonize with the design of furniture or fittings, while maintaining a distinct presence as a caster. Rather than a ball bearing configuration comprising an axle and bearing, which is the basic structure of a conventional caster, it is characterized by a sliding configuration that does not use an axle or bearing. The da e caster structure comprises a stainless steel shell, an aluminum roller, and an internal ring made of special resin, enablingaring-shaped wheel with a central hole – a hublesscaster that possesses sufficient strength and solidity, yet seems to float.